Draft:Seagate ST-251

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Last edited by Chaotic Enby (talk | contribs) 9 days ago. (Update)

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The ST-255/ST-251 is a family of MFM harddisks, manufactured by Seagate Technology. It has a ST506/ST412 interface.

The ST-238/ST-277 used RLL modulation, increasing the amount of sectors per track, from 17 to 26. Therefore increasing the capacity with the same hardware.

It was possible to use a good ST-225 with an RLL interface board, and increase the capacity without the higher cost of the company certified RLL models.

It was a very popular harddisk model, mostly used in the era of the IBM XT clones.

The sound it makes while seeking, is used in many movies.

Variants

ST-225 MFM 20MB capacity.
ST-251 MFM 40MB capacity.
ST-238R RLL 33MB capacity.
ST-277R RLL 66MB capacity.

Draft:Seagate ST-251

Variants

References